Grackle \Grac"kle\, n. [Cf. L. graculus jackdaw.] (Zo["o]l.) (a) One of several American blackbirds, of the family {Icterid[ae]}; as, the rusty grackle ({Scolecophagus Carolinus}); the boat-tailed grackle (see Boat-tail); the purple grackle ({Quiscalus quiscula}, or {Q. versicolor}). See {Crow blackbird}, under {Crow}. (b) An Asiatic bird of the genus {Gracula}. See {Myna}.